深不可測的,無底的深度上象深淵的;深不可測的 Resembling an abyss in depth; unfathomable.
他已陷入絕望的深淵。 He has been in the abyss of despair.
我一生,就像沉在一個無底的深淵,一直在把一車車的見聞,倒進那個我稱之為精神的遺忘之空虛里去。 All my life, as down an abyss without a bottom, I have been pouring vanloads of information into that vacancy of oblivion I call my mind.